University of Namur

  • Belgium

Research Output 1964 2019

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Working paper
2017
File
Data Assimilation
Linear Least Squares
Weighted Least Squares
Matrix Models
Preconditioning

A note on using performance and data profiles for training algorithms

Porcelli, M. & Toint, P. 26 Nov 2017 (Submitted) Arxiv, 8 p.(naXys technical report)

Research output: Working paper

File
Training Algorithm
Profile
Benchmarking
Derivatives
Derivative-free
Open Access
File
Unconstrained Optimization
Nonlinear Optimization
Higher Order
Evaluation
Model

New Economics Papers Entrepreneurship

Dejardin, M. 2017

Research output: Working paper

Entrepreneurship
Economics

On the use of the saddle formulation in weakly-constrained 4D-VAR data assimilation

Gratton, S., Gürol, S., Simon, E. & Toint, P. 20 Sep 2017 (Submitted) Arxiv

Research output: Working paper

File
Data Assimilation
Saddle
Formulation
data assimilation
method
File
Nonconvex Optimization
Constrained Optimization
Optimality
Higher Order
Evaluation
File
Constrained Optimization
Singularity
Model
Constrained optimization
Objective function

Working long hours: less productive but less costly? Firm-level evidence from Belgium

Delmez, F. & Vandenberghe, V. 2017 33 p.(IRES Discussion Papers; no. 2017-22)

Research output: Working paper

Open Access
File
Labour costs
Belgium
Productivity
Working hours
Workers

Worst-case evaluation complexity and optimality of second-order methods for nonconvex smooth optimization

Cartis, C., Gould, N. I. M. & Toint, P. 22 Sep 2017 Arxiv, 35 p.

Research output: Working paper

File
Optimality
Optimization
Evaluation
Newton-Raphson method
Class
2016
Open Access

Households in Times of War: Adaptation Strategies during the Nepal Civil War

Libois, F. 2016 CRED, 68 p.(CRED working paper)

Research output: Working paper

caste
Nepal
civil war
time
income

Quantifying the degree of average contraction of Collatz orbits

Carletti, T. & Fanelli, D. 21 Dec 2016 (Submitted) Namur center for complex systems, 18 p.

Research output: Working paper

File
Contraction
Orbit
Integer
Modulo
Iterate

Disruptive innovation and competition policy enforcement

De Streel, A. & LAROUCHE, P. 2015 OCDE, 14 p.(Directorate for financial and enterprise affairs competition committee)

Research output: Working paper

Evaluation complexity bounds for smooth constrained nonlinear optimization using scaled KKT conditions and high-order models

Cartis, C., Gould, N. I. M. & Toint, P. 17 Oct 2015 (Submitted) Namur center for complex systems, 20 p.(naXys technical report)

Research output: Working paper

File
KKT Conditions
Constrained Optimization
Nonlinear Optimization
Higher Order
Evaluation
File
Euclidean norm
Higher Order
Evaluation
Model
Local Minimizer
Decision theory
Adaptive systems
Systems engineering
Specifications
Requirements engineering
Yield spread
Asset prices
Surprise
Credit rating
Price dynamics
File
Euro area
Yield spread
Alignment
Politicians
Investors

Worst-case evaluation complexity for unconstrained nonlinear optimization using high-order regularized models

Birgin, E., Gardenghi, J., Martinez, J-M., Santos, S. A. & Toint, P. Jun 2015 2015: Namur center for complex systems, 8 p.(naXys Technical Reports; vol. 05-2015)

Research output: Working paper

File
Unconstrained Optimization
Nonlinear Optimization
Higher Order
Derivative
Evaluation
File
Interior Point
Nonlinear Optimization
Matrix Derivative
Merit Function
Quadratic Optimization